Hughes Hall is a constituent college of the University of Cambridge in England. It is the oldest of the four Cambridge colleges which admit only mature students. The majority of Hughes Hall students are postgraduate, although nearly one-fifth of the student population comprises individuals aged 21 and above who are studying undergraduate degree courses at the University. The college is housed in a number of 19th and 20th century buildings at a main site immediately adjacent to the University of Cambridge's Cricket ground, and between the City Centre and the railway station.